Using this d3 gallery as a reference:http://bl.ocks.org/mbostock/4062045 in the makeGraph code ;
I am able to add start nodes and end nodes and form links as can be seen above. I am also able to render graphs from them. But I also need a way to populate

nodetype,link_Paytime, link_TXN_COUNT,link_Amt, link_SendTime

and use them in d3GraphData which will be later used as "text" on nodes and links. This is my first project ever on d3.js.